Improvement in carbureters



UNITED STATES PATENT OFFICE.

JOHN G. HENDERSON, OF SAN FRANCISCO, CALIFORNIA, .ASSIGNOR TO THEOARBURETED GAS MAOHINEfOOMPANY, OF SAME PLACE.

l-MPROVEMENT IN CARBURETERS.

Specification forming part of Letters Patent No. 164,558, dated J one15, 1875 application filed March 13, 1875.

To all whom "it may concern Be it known that I, JOHN CARLOS HENDER-sort, of the city and county of San Francisco, State of Oalifornia,haveinvented an Improved Oarbureter, of which the following is aspecification:

My invention relates to that class of apparatus in which is inclosed acertain amount of gasoline, naphtha, or other volatile oils ofpetroleum, &c., and through or over which a current of air is passed,charging it with the gases issuing from the above-mentioned oils orfluids, and rendering it inflammable and fit for illuminating purposes.

Referring to accompanying drawing, forming part of this specification,Figure l is an elevation of my improved carbureter, shown in section.Fig. 2 is a plan of same.

A is the casing, having a diaphragm, B, of perforated sheet metal. 0 isthe inlet-pipe for the air-current, and opens out underneath perforateddiaphragm. D is a supply-tank filled with gasoline or any other oilused. E is pipe leading from immediately above the perforated diaphragmto the bottom of the supply-tank D. E is pipe leading from supply-tank Dto carbureter, and opens out as far above the level of perforateddiaphragm as the required thickness or depth of the oil-film, ashereinafter described. F is a water-supply tank, having a siphon-pipe,g, communicating to under side of main casing A. This tank F is suppliedwith water from any source, such as at h. This water-supply is kept upwhen the carbureter is working. The tank F should be placed a littleabove the level of perforated diaphragm. H is pipe on top of casing A,which carries off the carbureted air to its destination.

In working my carbureter, it is first filled with water from tank Fthrough siphonpipe g, to a level with top of perforated diaphragm B, andthe supply of water being kept up it will run into pipe E, thence intooil-supply tank D, where, being of greater specific gravity than thegasoline or other oils of petroleum used, it will displace its bulk ofoil, which will pass upward through pipe E into carbureter, and therefloat upon the water already there, when the required depth of oilfilmis attained, this depth of film being the distance between top of pipe Eto a line level with contents of tank F, and this depth will be more orless great as the said tank F is more or less elevated above mouth ofpipe E. This will be the case as the water from tank F, flowing into thecarbureter, will, in rising to seek its level, reach the mouth of pipeE, when it will flow through it and into gasolinesupply tank D, theredisplacing and forcing upward into carbureter, through pipe E,sufficient of the gasoline to equalize the pressure from tank F. Thisequilibrium being established, the water in tank F, or which is suppliedto it, will overflow its sides, until the carbureter be set in operationby allowing the current of air from inlet-pipe G into it. Thisair-current passes out of pipe O underneath the diaphragm and throughthe water there, spreading itself and bubbling upward through it and theoil-film floating on top, thus becomin g charged with the volatile andinflammable gases issuing from the oils used, and passing out ofoutlet-pipe H. to its destination.

The purpose of the above-mentioned diaphragm B in my carbureter is toserve or act as a break-wall or partition, (its position, as beforesaid, being between the water and gasoline-film in tank A,) for checkingthe too great ebullition or shaking up of the liquids in the carbureterwhen the aircurrent is passed through them, which will be seen is thecase; for the air-bubbles coming out of pipe 0 in rising through thewater strike the diaphragm, breaking their volume and force, and onlyquietly filter through the perforations in diaphragm and through theoil-film, thereby preventing, as before said, the two liquids from beingtoo heavily agitated, and the water from rising above the mouth of pipeE, which, by the operation before described, would allow an extraquantity of gasoline from the supplytank D to enter the carbureteralmost continuously while the machine would be in operation, which notonly would not be necessary, but would be wasteful, as by thiscontinuous supply of gasoline the film in the carbureter would beincreased in depth, thereby giving more, as well as an unnecessary,carburetingsurface for the air to pass through, making 1t extravagant] yrich in carbon, which would give a smoky flame at the burnera thing tobe avoided as much as possible. All the abovementioned results will takeplace in the carbureter when not supplied with the diaphragm and it isto conquer these objections that I apply it in my machine.

When, through the constant evaporation and carrying off of the vaporsfrom the oils used,

the depth of film floating on the water in the casingAis depleted,diminishing also the head of pressure in the mouth of siphon-pipe g, thewater in it will naturally rise to keep the same level as before, indoing which it will force itself upward through perforated diaphragm,and into the supply-tank D through pipe E, there displacing, as beforesaid, its equivalent in bulk of oil or gasoline, which rises to the top,and regains again the level formerly had in casing A. This is acontinuous and automatic operation, which keeps the carbureter alwayssupplied with fresh material. Be it understood that the cock h whichsupplies the tank F and siphon g with water is kept running when thecarbureter is in operation. The water not required to sustain thebalance or level of the film of oil in the carbureter flows over thesides of the tank, or through an opening for the purpose, as at 73.

Having described my invention, I claim and desire to secure by LettersPatent- 1. The supply-tank D, having water-induction pipe E andejection-pipe E, in combination with a carbureter, wherein layers ofwater and of volatile hydrocarbon oil or fluid are used, as beforespecified.

2. The water-tank F, with its siphon-pipe g, in combination with acarbureter-tank or casing, A, constructed and operating substantially ashereinbefore described.

3. In a casin g or tank, A, the perforated diaphragm or partition B, incombination with pipes E and E and supply-tank D, for the purpose ashereinbefore fully described.

JOHN (J. HENDERSON.

Witnesses:

F. E. MONTEVERDE, GEO. PARDY.

